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Why am I getting a crash when exiting my Activity?

Answer 1

+3 A:

Can't help much, as there's no code. Still looking at

Caused by: java.lang.NullPointerException at android.app.Activity.performStop(Activity.java:3575)

I just checked Activity.java

       final int N = mManagedCursors.size();
        for (int i=0; i<N; i++) {
            ManagedCursor mc = mManagedCursors.get(i); 
            if (!mc.mReleased) {
                mc.mCursor.deactivate(); // line 3575
                mc.mReleased = true;
            }
        }

Are you sure all cursors are released properly?

bhatt4982 2009-09-04 05:48:31

I think they should be managed by the Activity... I've called startManagingCursor() on the only Cursor I'm using. Shouldn't this handle that?

fiXedd 2009-09-04 06:47:05

From the docs: This method allows the activity to take care of managing the given Cursor's lifecycle for you based on the activity's lifecycle. That is, when the activity is stopped it will automatically call deactivate() on the given Cursor, and when it is later restarted it will call requery() for you. When the activity is destroyed, all managed Cursors will be closed automatically.

fiXedd 2009-09-04 06:48:02

Isn't that actually exactly what the code you posted should be doing?

fiXedd 2009-09-04 07:03:15

Oh wait... I bet the cursor object IS null... duh. Thanks for pointing me in the right direction.

fiXedd 2009-09-04 07:05:23

So whats the state now... fixedd????

bhatt4982 2009-09-04 16:54:56

Yep, that was it. It had no problems "binding" to a null, but when it was trying to free it it was throwing an exception. Thanks.

fiXedd 2009-09-07 07:27:28

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Why am I getting a crash when exiting my Activity?

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